Advertising-clock



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of the end of lever H.

zen of the United States, residing at San Rathe usual dial and hands.

Unitas S'rAEs PATENT Fries.

LElVIS PETERSON, OF SAN RAFAEL, ASSIGNOR TO THE IVESTERN CLOCK ADVERTISING COMPANY, OF SAN-FRANCISCO, CALIFORNIA.

ADVERTISING-CLOCK.

SPECIFICATION forming part of Letters Patent No. 499,931, dated June 20, 1893.

Application filed August 19, 1892.

To all whom it may concern.-

Be it known that I, LEWIS PETERSON, a citi fael, Marin county, State of California, have invented an Improvement in Advertising- Glocks; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of advertising devices in which a series of advertising placards is periodically driven to exhibit successive placards, by means of a clock operatingthrough suitableintermediate mechanisms.

My invention consists in the novel combination and arrangement of parts hereinafter fully described and specifically pointed out in the claims.

The object of my invention is to provide a simple, effective and attractive device of this class.

Referring to the accompanying drawings for a more complete explanation of my invention,Figure 1 is a front elevation, a portion of the face of the casing being broken away. Fig. 2 is a side elevation, part of the casing being broken away. Fig. 3 is a detail A is a casing of suitable ornamental character. In its lower front it has a sight aperture a, the top of which has a hood a which serves as a guide for the successive advertising placards B as they approach their point of dropping to exhibit their faces. The placards are pivotally mounted in the circumference of revoluble end disks 0, carried by a shaft D, which is mounted in suitable standards d. l

In the top of easing A is a clock E having The mechanism of the clockis of the ordinary description and is designated generally by e.

In the lower portion of the clock frame is a shaft F which carries a pinion f. This pinion engages the gearing of the clock mechanism as shown, whereby it and the shaftF derive a rotary motion. Shaft F also carries a cam wheel'G consisting of a disk wit-h a cir- Serial No. 443,511. (llo model.)

cumferential series of inclined drop planes or cams g.

His a pivoted lever, one extremity of which bears on the cams of wheel G, an anti-friction roller h preferably intervening. To the other extremity of lever H is connected an actuating pawl I which engages with a ratchet J on the shaft D below. controls this ratchet.

L is a gong, and M is a striker carried by the lever H and adapted to hit the gong.

A retaining pawl K The operation is as follows:The shaft F being rotated by the clock mechanism, the

.cams of wheel G bear down successively upon the lever H and successively relieve it. Bearing down upon this end of lever H raises its other end, and this movement lifts pawl I, which, through its engagement with ratchet J turns shaft D and the end disks 0. A placard B is thus brought forward past the guide hood ct and it then drops by gravity thus exposing its face. Then the cam, relieving the lever H, said lever drops its lower extremity and lowers the pawl I for engagement with the next tooth of the ratchet J, and this same dropping of lever H causes the striker to hit the gong and thereby attract attention to the exhibition of the placard. The operation being repeated, the several placards are successively exhibited. The time during which each placard is exhibited can be properly determined by the movement given to the cam wheel G.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the shaft D having the disks 0 with the series of pivotally mounted swinging and successively dropping placards, the clock mechanism, the shaft F driven thereby and having a cam wheel Gr, the pivoted lever having one extremity impinging on said cam wheel, the pawl I attached to its other extremity and the ratchet J on shaft D, with which said pawl engages, substantially as herein described.

2. The combination of the shaft D having the disks 0 with the series of pivotally mounted swinging and successively dropping placards, the clock mechanism, the shaft F driven thereby and having a cam'wheel G, the -;piv-; oted 'lever having one extremity impinging on said cam wheel, the pawl I attached to its other extremity, the ratchet J on shaft D with which said pawl engages, the striker carried by the pivoted wleveriand thegongiwit-h which said striker comes in contact by the movement of the lever, substantially as herein described. to

In witness whereof I have hereunto set: my

hand. LEWIS PETERSON.

Witnesses:

vS. NOURSE, x H. F. AsoHEoK; 

